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Finding the Fourth Proportional to 3,654.80, 5,482.20 and 3,606.20

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Solution

The fourth proportional to 3,654.80, 5,482.20 and 3,606.20 is: 5,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.80 : 5,482.20 = 3,606.20 : x
  2. Step 2: Convert to fraction form
    3,654.80/5,482.20 = 3,606.20/x
  3. Step 3: Cross multiply
    3,654.80x = 5,482.20 × 3,606.20
  4. Step 4: Simplify right side
    3,654.80x = 19,769,909.64
  5. Step 5: Solve for x
    x = 19,769,909.64/3,654.80
  6. Step 6: Final answer
    x = 5,409.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.